Free Access
Fig. 4

Chemical pathways that distribute the two carbon isotopes in atomic carbon, C2 and C3 at 3 × 104 yr (left panel) and 3 × 105 yr (right panel), for the fiducial model. Main creation and destruction reactions are highlighted in red, 12C is represented in blue and 13C is represented in green.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.